Stiffness adjustment device
AssigneeTournadre SA Standard Gum
InventorsGéraud Cailley, Pascal Lobry, Jacques Lobry
Life of this patent
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Abstract
The invention relates to the field of furnishing. In particular, the invention relates to a stiffness adjustment device movable between an interference position for imposing a restriction on the deformation of a seat, back or bedding spring, and a non-interference position for releasing the spring from the restriction. The stiffness adjustment device comprises a resilient element, e.g. such as a flexible blade and, as it moves between the interference and non-interference positions it passes through an intermediate position in which the resilient element is subjected to resilient bending that is greater than in the interference and non-interference positions.
Claims13
A stiffness adjustment device movable between an interference position for imposing a restriction on the deformation of a plurality of springs of a seat, of a seatback, or of bedding, and a non-interference position for releasing the plurality of springs from the restriction, by passing through an intermediate position between the interference and the non-interference positions, and including a resilient element subjected in the intermediate position to resilient bending that is greater than in the interference and non-interference positions and a plurality of rotary parts suitable for turning between interference and non-interference positions, each rotary part being configured to impose a restriction on the deformation of a corresponding spring of the plurality of springs in the interference position, and to release the corresponding spring from the restriction in the non-interference position.
A method of adjusting stiffness of a plurality of springs of a seat, of a seatback, or of bedding, with a stiffness adjustment device including a plurality of rotary parts, the method comprising at least a step in which each rotary part of the plurality of rotary parts of the stiffness adjustment device is turned between an interference position imposing a restriction on the deformation of the corresponding spring of the plurality of springs and a non-interference position releasing the corresponding spring from the restriction by passing through an intermediate position in which a resilient element of the stiffness adjustment device is subjected to resilient bending that is greater than in the interference and non-interference positions.
Dependencies are inferred from the claim text.